﻿using System;
using System.Text;
using System.Web;
using System.Web.Mvc;
using Newtonsoft.Json;

namespace TimeTracker.Web.Mvc
{
    public class JsonNetResult : ActionResult
    {
        public JsonNetResult()
        {
            SerializerSettings = new JsonSerializerSettings();
        }

        public Encoding ContentEncoding { get; set; }
        public string ContentType { get; set; }
        public object Data { get; set; }
        public JsonSerializerSettings SerializerSettings { get; set; }
        public Formatting Formatting { get; set; }

        public override void ExecuteResult(ControllerContext context)
        {
            if (context == null) 
                throw new ArgumentNullException("context");

            HttpResponseBase response = context.HttpContext.Response;
            response.ContentType = !string.IsNullOrEmpty(ContentType) ? ContentType : "application/json";
            
            if (ContentEncoding != null) 
                response.ContentEncoding = ContentEncoding;
            
            if (Data != null)
            {
                var writer = new JsonTextWriter(response.Output)
                                 {
                                     Formatting = Formatting
                                 };
            
                JsonSerializer serializer = JsonSerializer.Create(SerializerSettings);
                serializer.Serialize(writer, Data);
                writer.Flush();
            }
        }
    }
}